\documentclass[tikz,border=0.1cm]{standalone}

\usepackage{tikz}
\usepackage{pgfplots}
\usepackage{amsmath}

\pgfplotsset{compat=newest}

\begin{document}

\newcommand{\power}{10}

\begin{tikzpicture}
\fontfamily{phv}
\scriptsize
\begin{axis}[
  height=5.5cm,
  width=5cm,
  axis x line=center,
  axis y line=center,
  xtick={-50,-20,20,50},
  xticklabels={10.0,7.0,4.0,7.0},
  ytick={20,60,100},
  yticklabels={},
  xgrid,
  xlabel style={below left},
  ylabel style={below right},
  xmin=-100,
  xmax=100,
  ymin=-5,
  ymax=130]
  
\node[] at (axis cs: -40,125) {MAPE};
\node[] at (axis cs: 40,125) {RMSE};

%% RMSE
\draw[draw=gray!60, fill=red!20] (1.5,20-14) rectangle (47.4-20,20-7-0.7);
\draw[draw=gray!60, fill=red!20] (1.5,20-14+40) rectangle (50.3-20,20-7+40-0.7);
\draw[draw=gray!60, fill=red!20] (1.5,20-14+80) rectangle (56.2-20,20-7+80-0.7);

\draw[draw=gray!60, fill=green!20] (1.5,20-7) rectangle (56.4-20,20-0.7);
\draw[draw=gray!60, fill=green!20] (1.5,20-7+40) rectangle (61.1-20,20+40-0.7);
\draw[draw=gray!60, fill=green!20] (1.5,20-7+80) rectangle (69.1-20,20+80-0.7);

\draw[draw=gray!60, fill=blue!20] (1.5,20) rectangle (57.8-20,20+7-0.7);
\draw[draw=gray!60, fill=blue!20] (1.5,20+40) rectangle (58.1-20,20+7+40-0.7);
\draw[draw=gray!60, fill=blue!20] (1.5,20+80) rectangle (88.0-20,20+7+80-0.7);

\draw[draw=gray!60, fill=yellow!20] (1.5,20+7) rectangle (54.4-20,20+14-0.7);
\draw[draw=gray!60, fill=yellow!20] (1.5,20+7+40) rectangle (56.7-20,20+14+40-0.7);
\draw[draw=gray!60, fill=yellow!20] (1.5,20+7+80) rectangle (62.2-20,20+14+80-0.7);


%% MAPE
\draw[draw=gray!60, fill=red!20] (-1.5,20-14) rectangle (-81.5+50,20-7-0.7);
\draw[draw=gray!60, fill=red!20] (-1.5,20-14+40) rectangle (-86.9+50,20-7+40-0.7);
\draw[draw=gray!60, fill=red!20] (-1.5,20-14+80) rectangle (-99.3+50,20-7+80-0.7);

\draw[draw=gray!60, fill=green!20] (-1.5,20-7) rectangle (-112.0+50,20-0.7);
\draw[draw=gray!60, fill=green!20] (-1.5,20-7+40) rectangle (-123.8+50,20+40-0.7);
\draw[draw=gray!60, fill=green!20] (-1.5,20-7+80) rectangle (-143.0+50,20+80-0.7);

\draw[draw=gray!60, fill=blue!20] (-1.5,20) rectangle (-101.8+50,20+7-0.7);
\draw[draw=gray!60, fill=blue!20] (-1.5,20+40) rectangle (-102.5+50,20+7+40-0.7);
\draw[draw=gray!60, fill=blue!20] (-1.5,20+80) rectangle (-116.7+50,20+7+80-0.7);

\draw[draw=gray!60, fill=yellow!20] (-1.5,20+7) rectangle (-95.0+50,20+14-0.7);
\draw[draw=gray!60, fill=yellow!20] (-1.5,20+7+40) rectangle (-98.3+50,20+14+40-0.7);
\draw[draw=gray!60, fill=yellow!20] (-1.5,20+7+80) rectangle (-105.7+50,20+14+80-0.7);

\addplot[mark=None, very thin, dashed] plot coordinates { (-20,0) (-20,115) };
\addplot[mark=None, very thin, dashed] plot coordinates { (20,0) (20,115) };


\end{axis}
\end{tikzpicture}

\end{document}